Air-cooler for air-compressors.



H. E. MAOGAMY- AIR COOLER FOR AIR GOMPRE SSORS.

APPLICATION FILED OUT. 23, 1012.

Patented Mar. 4, 1913.

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WITNESSES ATTORNEYS H. E. MAGCAMY.

AIR 000mm FOR AIR commzssons.

APPLIUATION FILED 001. 23, 1912.

Patented Mar. 4, 1913.

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HARRY EDWIN MACCAMY, OF SPOKANE, WASHINGTON.

AIR-COOLER FOR AIR-COMPRESSORS.

I, Specification of Letters Patent.

Application filed October 23, 1912. Serial No. 727,366.

To all whom it may concern:

Be it known that I, HARRY MACGAMY, a citizen of the United States, a d a resident of Spokane, in the county of Spokane and State of Washington, have invented a new and useful Improvement in Air-Coolers for Air-Compressors, of which the following is a specification.

My invention relates to air coolers for use with either single or multiple stage air compressors, and it consists in the combinations, constructions and arrangements herein de scribed and claimed.

An object of my invention is to provide a device for cooling air in which a greater surface of air is exposed to the cooling medium than in the ordinary air cooling device. This object I attain by means of a perforated partition and a series of pipes which are so disposed as to break up the air into minute particles, at the same time causing these particles to pass into contact with the cooling surfaces.

Other objects and advantages will appear in the following specification, and the novel features of the device will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings forming a partof this application, in which, 1

Figure 1 is a side view of the device; Fig. 2

. is a plan view thereof; Fig. 3 is an end view;

Fig. 4 is a section along the line of Fig. 2; Fig. 5 is a sectionalong the line 5-5 of Fig. 4; and Fig. 6 is a section along the line 66 of Fig. 4.

In carrying out my invention I provide an exterior casing 1 having at one end an inlet 2 and at the other an outlet 3. Between the inlet 2 and the interior of the casing is arranged the perforated partition 4, while a similar partition 5 is disposed between the interior of the casing 1 and the outlet 3. An interior box or casing-6 is provided, leaving spaces or passages 7 on'the sides, and spaces 8 at the bottom. Between the casing members 1 and6 at the bottom of the device is a series of partitions 9 which divide the spaces 8 into a series of passages,

as will be shown later. Between the inner casing 6 and the outer casing 1 on the sides of the device are partitions 10 which extend from-the casing 6 to the top 12. klternatingwith these partitions 10 are the partitions 11 which extend upwardly from the casing 6 but terminate short of 'the'top 12 Disposed in the interior of the innerc'asg ing 6 isa series of pipe coils, such as those shown at 15 in Figs. 4 and 5. One end oi each coil 15 extends up through a post or spacing member 16, a packing gland-17 being provided for rendering the devicegair tight. The opposite end of the coil extends through a similar post 18 which-is provided with a packing gland 19 similar to the gland 17. As will be seen f n Figs. 1, 2, and 4, the end of one coil 15 s connected with the end of the next coil by means of the pipes 20. An inlet pipe 21communicates with the first coil 15, while the outlet pipe'22 leads from the last coil. The inlet pipe 21 also communicates by means of a branch pipe 24 with one of the passa cs 13 ofthe hollow top 12, see Fig. 5, whi e the branch pipe 25 establishes communication between the inlet pipe 271 and one of the vertical side passa es Patented Mar. 4, 1913.

rom the foregoing description of the various parts of the device, the 0 oration thereof may be readily understoo The column of compressed air in its passage, either from the low pressure cylinder to the high pressure cylinder, as in multiple stage compressors, or from the compressor to the -receiver, as in single or multiple air sta e compressors, enters the inlet 2 and imme iatcly is broken up into small streams by the perforated partition 4. The air is forced thence against the pipes of the cooling coils 15. The cooling medium for fillingthe pipes 15 is preferably water, although it is loo obvious that any other suitable-cooling me- I dium might be used. The water passesinto the pipes 15 by means of the inlet 21 as described, and thence from coil to coil through the connecting pipes 20, finally passing out through the outlet pipe 22. The water 'which passes through the branch pipe 2 1 enters one of the passages 13 in the top, passes laterall across the device, thence through one o. the connectin pipes 14, see Fig. 2, thence through the ad acent passage l3, thence by pipe l l 'into the next passage i3, etc, finally cliicrging through the pipe 26, see Fig. The Water which enters the side passages 7 by means of the pipe 25 Fig. 5) circulates through these sidepa the manner shown in Fig. 1 and emerges from the pipe 27. The air, i noticed, in passing from the inlet the outlet 3 does not flow along the p Which forni"the coils 15, but flows tra; versely of them; Thus the .air no soc passes one pipe than it is brought ap another one. This arrangement of serves to bring; all particles of the ai. contact with the cooling, "uriaces of the and results in a very etiicient cooling (is ice. Furthermore, the air is broken up again in its passage of the perforated partition 5, thus giving the air a final cooling.

l'clain12- 1. In an air cooling device, an exterior casing, an interior casing, Water passages between said interior and said exterior casing, an air inlet coinn'mnicating with said interior casing, an air outlet leading therefrom, a series of Water cooled pip-es disposed Within the interior casing, each of said pipes extending at right-angles to the direction of travel of the air from the inlet to the outlet, and a perforated art-ition disposed between said air inlet and the Water cooled pipes for breaking up the air into small particles.

2.111 an air cooling device, an exterior casing, an interior casing, water passages between said interior and said exterior casing, an air inlet communicating with said interiorcasing, an air outlet leading therefrom, a series of Water cooled pipes disposed Within the interior casing, each of said pipes extending at right angles to the direction of travel. of the air from the inlet to the outlet, a perforated partition disposed between said air inlet and the Water cooled pipes for breaking u tne air into small particles, a second per orated partition between the Water cooled pipes and the outlet, and means for supplying Water to said Water passages.

JAMES M. FITZPATRIGK, Gnome E. ADAMS. 

